0 votes 0 votes a) 0 b) 1 c) 2 d) 3 Databases sql query databases + – Nirmal Gaur asked Sep 15, 2018 Nirmal Gaur 543 views answer comment Share Follow See all 7 Comments See all 7 7 Comments reply Show 4 previous comments BASANT KUMAR commented Sep 16, 2018 reply Follow Share can you tell me what happen when i replace NOTIN by EXCEPT is it 3??? 0 votes 0 votes Shaik Masthan commented Sep 16, 2018 reply Follow Share EXCEPT is a SET operator, you can't apply it here. i hope you want to know (Set1) except (Set2) 1) if Set2 is empty, then result is Set1 2) if Set1 is empty, then result is empty 0 votes 0 votes BASANT KUMAR commented Sep 16, 2018 reply Follow Share got it.i forget the basic concept.thnx 0 votes 0 votes Please log in or register to add a comment.